Combined odometer and chronometer



3 SheetsSheet 1.

(No Model.)

D. HARRINGTON. COMBINED ODOMETER AND OHRONOMETER.

Patented Apr.6,189'7.

Inventor.

Witnesses.

Attorney5 3 Sheets-Sheet 2.

( No Model.)

'1), HARRINGTON.

COMBINED ODOMETER AND GHRONOMETER.

Patented Apr. 6, 1897.

Inventor.

Witnesses.

Attorneys 3 N O T G N I R R A H D COMBINED ODOMETER AND GHRONOMETER.

Patented Apr.6, 1897.

f2) CHEM/M U s\\\\\\\\\ Ill Witnesses.

AttorneyS UNITED STATES PATENT OEEicE.

DAVID HARRINGTON, OF WORCESTER, MASSACHUSETTS.

COMBINED ODOMETER AND CHRONOEVIETER.

SPECIFICATION forming part of Letters Patent N0. 580,047, dated April 6,1897.

Application filed October 4,1895. Serial No. 564,605. (No model.)

To mil whom. it 771..11 concern Be it known that 1, DAVID HARRINGTON, acitizen of the United States, residing at 'Worcester, in the county of\Vorcester and State of lllassachusetts, have invented a new and usefulImprovement in a Combined Odometer and Chronometer, of which. thefollowing is a specification.

The aim of this invention is to provide a combined odometer andchronometer which shall be very simple and effective to accomplish thefunctions for which it is designed.

My construction has been primarily designed for use in connection withbicycles, so that the rider can accurately compare the distancetraversed with the time elapsed, although my invent-ion can be appliedto any mechanism in which it is desired to compare its operation withthe elapsed time.

My invention consists in a combined odometer and chronometer, in whichthe indicatinghand of the chronometer and the indicatinghand of theodometer are arranged relatively, so that the indicators of each may beeasily compared, of means for actuating the odometer, with connectionsto automatically wind the chrouometer. The chronometer is alsopreferably provided with a relief device in its mainspring,so that ifthe mainspring is wound tight an escape or relief will be provided. Ialso arrange with these parts a st-artin g, stopping, and settingdevice, by which the device can be started in operation, stopped toascertain its measurement, and then set to zero position ready foranother use. By this construction I provide an efficient device for thepurpose stated in which the winding of the chronometer by manualoperation is dispensed with.

Referring to the accompanying three sheets of drawings, I will describemy device as applied for use in connection with a bicycle.

Figure 1 is a side elevation of a bicycle with my device appliedthereto. Fig. 2 is a detail of the operating-lever which is mounted nearthe handle-bars. Fig. 3 is a detail view showing the way my device isapplied to one of the front forks of the bicycle. Fig. a is a plan viewof my combined odometer and ehronometer. Fig. 5 is a similar View withthe hands and graduated disk removed. Fig. is a sectional plan view ofthe mainspring and re lief, taken on the line (3 (3 of Fig. 7. Fig. 7 isa transverse sectional view of the parts shown in Fig. (5. Fig. 8 is adetail view of the cam which is used to actuate the part that sets thehands. Fig. is a sectional plan view taken on the line 9 9 of Fig. 11.Fig. 10 is a detail view of a friction device that I use on one of theshafts. Fig. 11 is a longitudinal sectional view through the center ofmy device. Fig. 12 is a detail upon an enlarged scale of one of thefriction devices, the same being taken on the line 12 of Fig. 11. Fig.13 is a similar view of another friction device, taken on the line 13 ofFig. 11. Fig. 1a is a sectional elevation through the shaft on whichsome of the operating parts of the setting mechanism are mounted, andFig. 15 is a detail of part of the gearing hereinafter referred to.

I will first describe one way by which my device may be convenientlyapplied and used on a bicycle.

My combined odometer and chronometer is referred to generally by thereference-letter A.

Screwed in the bottom of my device is a stud 20, on which is placed awasher 21 and nut 22.

The bicycle is designated by B, and mounted on one of the forks of thesameis a frame 23, which has a projecting arm 24, into which the stud 21is fitted, and by means of the nut 22 the device is held in place; alsoprojecting from the frame 2 3 is a yoke 25, which carries a small pulley26. Intending from the actuating-arm of my device is a wire 27, whichpasses around said pulley 26. A yoke 28 is secured to the bicycle, onthe head thereof, and a bell-crank lever 270 is pivoted thereto by meansof screw 280. This bell-crank lever has an extending arm 29, which maybe adjusted about a screw 30 as a pivot. The other end of the wire 27 isconnected to this extension 29, and by this means the wire may beproperly adjusted between the operatinghandle or bell-crank lever 270and my device. This construction is a simple and efficient one, for therider by touching the bell-crank lever with his thumb can start, stop,or set my device, as desired, and the position of my device on one ofthe forks is one which onables the rider to see the position of thehands while still 011 the machine.

I will now describe the detailed construc tion of my combined odometerand chrouometer, and reference to follow this construction should be hadto the second and third sheets of the drawings. The parts as shown inthese two sheets of drawings are about twice the scale of my device asordinarily constructed, although, of course, the device may be made ofany desired size.

0 represents a suitable easing, which may be made out of alumina iflightness of structure is an object. A bush 31 is provided with anextending screw-threaded hub 32, which is screwed into this easing C. Afriction-bush 34 is titted into the bush 31, as shown, and this bush 3%is provided with a lip 35, which is made by cutting two slots in thebush, as shown in Fig. 10. A screw 36 is tapped in the bush 31, and isset to bear on the lip and by means of this adjustment an easilyadjustedfrictionisprovided for the actuating-shaft 37, which is passed throughsaid bushes 31 and 34. A star-wheel SS is secured on the end of theshaft 37 by means of a screw 39. The shaft 37 is provided with a collar40, which tits against the end of the bush 31, and with an extendingscrew or worm 41. A suitable operating tappet or roll is mounted on thewheel, as shown in Fig. 1, so that each revolution of the-front wheelwill turn the star-wheel one tooth. This shaft 37 constitutes theactuating-shaft for both the odometer and chronometer, as hereinafterdescribed. A disk D is mounted on a suitable ledge in the upper part ofthe casing, as shown in Fig. 11, and is provided with a graduated circle(I, which may be used to indicate the distance traveled, and arranged topoint on this circle is a distance-hand d. Arranged outside of thedistance-circle is a graduated circle 6, which 1 term the ti inc-circle,and a hand a is mounted to indicate on this circle 6. The hands (1 and care preferably arranged on the same center, so that they will be inadjacent comparable relation.

The circle (Z may be divided into fractions of a mile, and the circle 6maybe divided into one hundred and twenty portions, each indicating asecond of time, and by this construction if the rider goes at an exacttwominute-to-the-mile gait the two hands will move exactly together. Ifhe goes faster than this gait, the d istance-hand will gain on thetime-hand, and if he goes at a less gait the distance-hand will loserelatively to the timehand.

By stopping the device at any instant the exact distance traveled can becompared with the exact time it has been taken to travel that distance.This is one convenient proportion and arrangement, and others maybeadopted as desired.

E represents a suitable bezel which is snapped onto the upper part ofthe casing and which holds the disk D in place beneath the glass coverF.

The casing O is provided with a ledge about half-way down, and fittingon this ledge is a partition G, which may be held in place un dersuitable pins t2, riveted in the casing by means of suitable stops l-J,which are adjustably held to the partition G by means of screws it. Abridge MO is secured to the under side of the partition G, as shown inFig. 15, and this bridge is made with a top and a bottom arm and aslotted rear portion. Fit ting into the slotted rear portion is a screw45, which is tapped into the partition G, as shown. A pin 1L6 is securedin the partition t, and the bridge 1H0 fits this pin.

The construction of bridges used in this device is substantially thatwhich is covered by the claims of an application for patent forchronometric construction tiled by me July 12, 1895, Serial No. 555,708,and no claim is made in this application to the details of suchbridgeworlt, as I deem the same fully covered by the claims in saidother application.

The particular bridge that l have just described is capable of a slightadjustment around the pin as a center, so that proper deptliening can beobtained of the gear 1-7 and the gear i8, which are mounted in the armsof said bridge so as to turn. together as one piece. A bridge it) isalso mounted on the lower side of the partition G and is held in placeby means of a pin 50, riveted in said partition, and by means of a screw5], which is tapped into said partition, and. surrounding said screw isa bush 510. The lower arm of this bridge carries an upwardly-prejectinghub 52, on which is mounted a double gear 53 and 54, made as one pieceor so that the two will turn together. A center shaft it is stepped inthe upper part of this hub, as shown. The gear 5 meshes with the gear 48, which is driven by the worm-gear.

510 designates a bridge which is secured to the upper side of thepartition (land which is hel d in place bya holding-screw 55 and by ascrew 50, which is tapped into the partition G, and by adjusting whichthe top arm of the bridge may be adjusted relatively to the partition G.The screw 55 is tapped in the lower arm of the bridge, and by tighteningsaid screw the bridge is tightly held on the pa rtition. This screw 55is also provided with an extending shank, which forms a pivot aboutwhich the top arm of the bridge may pivot as the same is adjusted by thescrew 50. A shaft 57 is mounted in the upper arm of this bridge and inthe partition, as shown in l ig'. 7. ()n the lower arm of this shaft isarranged a gear 58, which meshes with the gear 54, before referred to.This shaft 57 is also provided with a hub 59, as shown, which rests onthe partition to form the lower bearing for the shaft. The shaft 57carries at its upper end a disk 60, to which the mainspring (ll. of thechronometer is attached. This mainspring is arranged in a barrel-gear02, which is mounted on said shaft 57, and the barrel-gear is providedwith a cover (53 of the ordinary construction. The end of the mainspringis attached or placed in the bent end of a relief-spring 04, which ismounted in the barrel-gear, as shown in Fig. 6. This construction issubstantially like that described in my application referred to, and theparts referred to are so arranged that the friction or relief spring (Awill hold the mainspring until the same has been wound to the capacityof the same which it is desired to use, when the pull of the mainspringwill'then cause the friction-spring 6st to slip within the barrel-gear.By this means a simple and efficient relief is provided, so that if thechronometer is overwound a relief is provided whereby the mainspring iskept under the proper tension and no part is broken. The barrel-geardrives a chronometric train of any desired construction, the form shownconsisting of a bridge 00, mounted on top of the partition G,whichbridge carries a pinion 07 and gear 08, the barrel-gear (32 meshing withand driving the pinion 07.

09 designates another bridge mounted on top of the partition G, in whichis mounted a pinion and an escape-wheel 71, the gear 08 meshing with thepinion 70.

72 designates a bridge in which a balancewheel 7 3 is mounted, and theescape-wheel 71 meshes with any of the ordinary cylinder-eseapementsused to operate the balance-wheel 73. The balance-wheel may be providedwith any of the regulating or setting devices 7i. This chronoinetrictrain is of the ordinary eon struetion and needs no specific detaileddescription.

I may use any other desired form of chronometrie construction, whetherthe same employs a cylinder or lever escapement.

The barrel-gear is connected to actuate the time-hand by the followingconnections: A quill 75 carries a pinion 70, with which the barrel-gear62 meshes and drives. This quill is arranged upon another 'qnill 78,which projeets up from a cam 79, and this quill and cam 79 are arrangedon the center shaft II, before referred to, and any suitable frictiondevice, as the ordinary gripping-spring 77, may be arranged between thequill 75 and the quill 78. The cam 79 can be used to set the timehand,as hereinafter described. The timehand 6 is provided with an extendinghub 80, as shown, which extends down and embraces the quill 78. By thisconstruction the timehand 6 will be driven and can be set on its quill,as desired, and also the cam 79 can be used to bring the ti inc-handback to its zero position.

The distance-hand d has a projecting hub 81, which fits on the centershaft II.

The driving connections to the distancehand may be arranged as follows:The gear has a hub 82, and between this hub and a disk 84, looselymounted on the shaft II, is arranged a friction device 83. This frictiondevice consists of a spring bent around to engage the extending hub ofthe disk, as shown in detail in Fig. 12. A cam 87 is mounted on thecenter shaft II above the disk 84. Between the said shaft and the diskis arranged a friction device which consists of a piece of wire 85, bentlike a pair of tweezers and socured in place on the disk 84: by means ofa screw 80, as shown in enlarged view in Fig.

The little hub projecting up from the disk is cut away, so that theextending arms of the spring bear on the said shaft. By thisconstruction it will be seen that as the gear 53 is turned it willrotate the disk 84, and the rotation of the disk 8% will impart a rotarymovement to the shaft II by means of the friction device 85.

I apply a brake device, as hereinafter described, to the disk St, andwhen the disk is thus stopped the friction between the gear 53 and saiddisk will allow the gear 53 to con tinue its rotation withouttransmitting motion to the said shaft. The friction between the disk andthe shaft is used so that relief is provided when it is desired to setthe center shaft and the distance-hand d by means of the setting-cam 87.

I will now describe the details of the starting, stopping, and settingmechanism, and reference to follow this description should be had toFigs. 5, 11, and 11.

A hub 88 is screwed into the casing, and arranged in this hub is apull-shaft 89, which has a collar 90 and an extending hook 91, to whichthe wire 27 is attached. A hub 92 is secured in the partition G.Journaled on the hub 92 is a pawl-plate 93, having a cutaway portion930, which cooperates with a pin 931,arranged in thepartitionGtolimitthe outward movement of the pull-shaft 89. The pull-shaft 89 isconnected to this pawl-plate by means of asuitahle link 9i,as shown.Mounted on the pawl-plate is a spring-pawl 95, which is adapted to enage a ratchet-wheel 96. I preferably make this ratchet-wheel with sixteeth,as shown. A catch-spring 97 is mounted so as to engage saidratchetwheel and hold the same in position. The ratchet-wheel 90 ismounted on top of a shaft 900, which is journaled in the hub 92; alsofitting on' said shaft is a cam 98, which is secured to theratchet-wheel 90 by a screw 99. A cam 100 is set on the lower end of theshaft 900 by means of screw 10]." A spring 102 is coiled around asuitable screw 103, as shown, and one end is secured in the partition G,and the other end is secured to the pawl-plate 93, so as to keep thepawl-plate normally in its innermost position. A plate 101 is held tothe partition Gby means of this screw 10:3. The cams 98 and 100 are madewith two depres sions, as shown, arranged at one hundred and eightydegrees to each other and so as to each cover about one-sixth theperiphery of the cams. A lever 105 is pivoted on a screw 106, which istapped into the casing G, this lever being arranged on the under side ofthe partition G, as shown in Fig. 9. A stud 107 is also secured in thepartition G, and a spring IIO having two arms 108 and 109 is secured toa stud 110, carried by said lever 105. The arm 108 of the spring willkeep the lower end of the lever 105 pressed against the cam 100. Theother arm of the spring is arranged in position to bear on the disk 8%to form a brake therefor. In the end of the lever is arranged a wiper111, which projects up through the partition G in position to just touchthe balance-wheel of the chronometric train. As the cam 100 is actuatedthe lever 105 will be vibrated. \Vhen the same is in the position shownin Fig. 0, the wiper 111 will engage the balance-wheel and stop theoperation of the chronometric train, and the spring-arm 100 will pressagainst the disk 81 and will stop the rotation of the distancehand.\Vhen,]1owever, the cam 100is turned so that the short end of the lever105 will lit in the depression therein, the wiper 111 will be moved topositively wipe the balance-wheel to start the oscillation of the same,and the spring-arm 109 will be removed from the disk 81:, and by thismeans the chronometer will be positively started in operation and thebrake which stops the rotation of the distance-hand will be moved to itsnon-operative position. A lever 1133 is pivoted on a screw 112, whichpasses through the plate 104: and which is tapped in the partition G.This l.ever carries at its end a hammer 115, which is adapted to strikeboth cams 79 and 87. These two cams are made of the usual and ordinaryheart shape, so that when the hammer is forced against the same both thetime and the distance hand will be brought to the Zero position.

With this arrangement the operation of my device is as follows: As shownin full lines in the drawin gs,the device has just been stopped. Thenext pull on the shaft 89 will rotate the cams 9S and 100 one-sixth of arevolution in the direction indicated by the arrow in Fig. i). This willhave no effect on the lever 105, but will cause the lever 113 to operateto cause the heart-shaped cams to bring both hands to the zero position.The next pull on the shaft 80 will allow the lever 105 to operate sothat the wiper 111 will positively start the balance-wheel and thus thechronometric train in operation, and will relieve the brake on the disk8t, so that the friction between the disk 81- a-nd the center shaft IIwill act so that the distance -hand (1 will be rotated. The next pull011 the shaft 89 will bring the parts back to the position shown in thedrawin gs and will stop both the odometer and the chronometer, so thatthe work done and time elapsed can be accurately ascertained andcompared. By this means an extremely etlicient and comparatively simpledevice to accomplish the many functions necessary is provided. Thechronometric train is made so that the mainspring will wind in theparticular use specified, so that the same will indicate a mile in sixminutes, a great deal slower than the ordinary speed at which a bicycleis ridden. In the ordinary use of my device the rider goes much fasterthan this, and hence the connections from the actuating mechanism of theodometer will quickly wind and keep the mainspring under its desiredtension, so that the chronometer will properly act. Thus even at theslow gait of the sixminute mile the mainspring is kept under desiredtension. If the rider goes faster than this, as he generally does, therelief will come into play and allow the mainspring still to bekept atthe full tension, and, further, when the speed of the bicycle isincreased and the mainspring wound the normal tension thereon is notincreased to derange the action of the chronometer.

A practical test of my device 11 s demonstrated its great utility, as abicycle-rider can determine exactly what distance he has gone and inwhat time and can easily compare such records one with the other.

The details and arrangements herein described may be greatly varied by askilled mechanic without departing from the scope of my invention asexpressed in the claims.

Having thus fully described my invention, what I claim, and desire tosecure by Letters Patent, is

1. In a combined odometer and chronometer, the combination of a casing,means for securing said casing to a bicycle, a hand for registeringtime, a hand for registering distance, said hands being located inadjacent comparable relations so as to show the speed at which a bicycleis being driven at any time when the instrument is in use, a barrel,mainspring and train for actuating the time-hand, an actuating mechanismfor the distancehand, comprising devices driven from a moving part ofthe bicycle, connections for automatically winding up the mainsprin g, arelief for preventing excessive tensions being put upon said mainspring,and a starting, stopping and resetting mechanism for said hands,substantially as described.

2. An indicator for bicycles comprising a cylindrical casin g, a tiinc-hand and a distance hand journaled concentrically with respect tosaid casing so that said hands may indicate the speed of a bicycle atany time when the instrument is employed, a barrel mainspring and trainfor aetuatin g the time-hand, an actuating mechanism for the distance-hand comprising a star-wheel and worm, a constantly-operating train ofgear-wheels driven by the actuating mechanism for automatically windingup the mainspring, and a relief for preventing excessive tensions beingput upon said mainspring, substantially as described.

The combination of a time-hand, a main spring and train for driving thetime-hand, a distance-hand, an actuating mechanism for thedistance-hand, connections for automatically winding the mainspring, anda startin g, stopping and setting mechanism comprising a brake for thedistance-hand, a wiper scope? arranged to positively start and stop theti metrain, and means for synchronously operating said brake and Wiper,substantially as described.

4. In a device of the class described the combination of a time-hand, amainsprin g and train for driving the time-hand, a distance-hand andactuating mechanism for the distance-hand, and a starting, stopping andresetting mechanism comprising a brake for the distance-hand, a wiperarranged to posi tively start and stop the time train, and means forreturning the hands to the Zero position, substantially as described.

5. In an instrument of the class described, the combination of a handfor registering time, a mainspring and train for driving said hand, ahand for registering distance, means for actuating the distance-hand,and a startin g, stopping and resetting mechanism comprising a brake forthe distance-hand, a wiper arranged to positivelystart and stop thetimetrain, a resetting-cam for each of said hands, and a singleoperating piece or hammer arranged to act upon both of theresetting-cams, substantially as described.

6. In a combined odometer and chronometer, the combination of a hand forregistering time, a hand for registering distance, a driving mechanismfor each of said hands, a frictional connection between each of saidhands and its driving mechanism, and a starting, stopping and resettingmechanism comprising a resetting-cam for each hand, a cam-shaft, apawl-and-ratchet connection for actuating said cam-shaft, a brake forthe distance-hand, a wiper arranged to positively start and stopthetime-hand, and a single actuating piece or hammer for engaging bothresetting-cams, said parts being operated from the cam-shaft,substantially as described.

7. In a device of the class described, the combination of a centershaft, a hand secured thereon, a disk mounted on said center shaft, adriving mechanism, a setting mechanism, a brake, means forsimultaneously actuating the brake and the setting mechanism, africtional connection between the center shaft and disk, and africtional connection between the disk and the driving mechanism, theparts being arranged to cooperate together, substantially as and for thepurpose set forth.

8. In a combined odometer and chronometer, a starting and stoppingdevice, consisting of a brake arranged to stop the action of theodometer, a wiper arranged to positively stop and start the chronometer,and means for actuating said brake and wiper synchronously,substantially as described.

9. In a combined odometer and chronometer, a starting, stopping andsetting device consisting of a brake for stopping the odometer, a wiperfor positively starting and stopping the chronometer, and a settingdevice to bring the hands to the zero position when both the odometerand chronometer are stopped, and means for operating these parts,substantially as described.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

DAVID HARRINGTON.

Witnesses:

LOUIS W. SOUTHGATE, PHILIP IV. SOUTIIGA'IE.

